Double stroller



FIG. 1 is a perspective view of a double stroller showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view; and,

FIG. 6 is a left side elevational view, the right side elevational viewbeing a mirror image thereof.

The ornamental design for double stroller, as shown and described.